Cut-out.



` FCONRAD.

cur-ouT. APPLlCATlON FILED APR. 2. ISIS- Patented June `12, 1917-.

Y The advantages of this IBAN! CONRAD', 6F BWISSVALE,

rmsnvlim Assreiron 'ro wnsrmenousn conm; s. conromirroiz or riimrsvnvmrrar TRIO AND MANUFACTURING cur-our.

Patented June 12, 1912'.

l Application ledrhpril 2, 1913.` Serial No. 758,311.

To Vall whom 'it may concern:

'Be it known that I, FRANK CONRAD, a citizen of the United States, and a resident of Swivale, in the county of Allegheny and Stateof Pennsylvania, have invented a new and useful Im rovement'in Cut-Outs, of which the following is a specification.

My invention relates vto cut-outs or switches for use in connection with such dynamo-electric machines as may be employed in charging'storage batteries of electrical systems.

My invention has for one of its objects to provide a device of the above indicated character that is Simple in structure and automatic in operation to control the circuits of an electrical system.

Another object of my invention is to provide a suitable construction whereby the cut-out may be assembled with the generator patlrts and form a unitary structure therew1 It hasbeen proposed to useV a speed-controlled device, such -as a centrifugal switch, for closing a circuit comprising a generator anda battery at a predetermined speed to correspond with the desired voltage, and for openin the 'same when the speed falls below this value. proven fairly the speed of th e generator may be changed by any abnormal condition,

such as 'a loose and, as a result, the battery woulddischarge back through the generator. This action may result in the demagnetization of the -eld magnets. There is a possibility, also that the battery may be overcharged by operatingvhthe generator at an. excessive speed. en the speed decreases, the

switch will not open untilthe minimum speed is reached. Before the switch opens,

l-the voltage of the battery may exceed that of the generator and thus ,cause the battery to discharge back through the generator. l

My invention provides a switch which automaticall closes the charging circuit at apredetermmed voltage cuit when currentbegins to iow froin4 the battery to the generator, thus acting asran electric valve.

device' are that While these devices have 4 elicient, it is possible that the normal relation between the voltage andthe circuit cannot be closed until the voltage of the generator is suiiiciently high tov charge the battery and no currentcan flow- .through the generator from the battery.

' being broken away. Fig. 3 is a diagrammatic view Vof'circuits and apparatus embodying y invention.

Referring particularly to Figs. 1 and 2, a generator 1 is provided with an armature 2, an armature shaft 3, and an end cas ing 4 that is made ofv an alloy or metal that is nonmagnetic. The casing 4 is provided with a chamber or recess 5 Vinclosed by a-fla't top member Gand a curved side member 7 that are integral parts of the casing 4. The chamber 5 forms a housing for a cut-'out 8.

The cut-out comprises a core member 9 and two coils V10 and 11. therefor that are wound to assist each other. Pole pieces l12 are attached to the core- 9 at `its respective ends and are bent at right angles toward each other in a. plane parallel to the axis of the core member.; The pole pieces 12 are -fastened to the member 6 by bolts 13 and v 14. The Vrespective heads 15 and 16 of the bolts are outside the chamber 5 and form extensions of the pole pieces 12.' An' armature 17 having a'pivotal support at 18 and being insulated from the casing 5, is normally heldin its uppermost position by a springT ture 1 19 that is connected to the arma- 19 is provided at its oppositeend w1th.a contact member 21 to engage a contact member 22 that is insulatedffrom, and supported by, the casing' 4. A contact member 23 is amature 17 is in-,its lower position. The contact member 24-.is' connected to a. terminal 25 that is supported by, and insulated coils 1 0 and v11. 'Ihat portion of the cutinclosedfby a` removable cover vmember 26.

at one end by screws 20. The spring mounted on the'under side of the amature .17 to engage a contact member 24 when the ,105

'It will be noted that, by means of tl1 e con struction' abbve described, the stationary portion of the cut-out is permanently inclosed The coils of the'cutout may be conveniently connected to the generator leads inside the generator structure. The contact members of the cut-out are readily accessible for inspection andl adjustment. Referring particular;

erator 1 is provided, wi a series field windin 27 and a shunt field winding 28. The

il 10 is connected in series with the shunt field winding 27 and the coil 11 is connected in series'l with the generator armature winding. These connections are preferably made within the generator structure and form a l portion of the interior circuits of the generator. A storage battery 29 is 'connected irectly is connected to the other terminal of the 'generator by connections that are controlled by the cut-out 8.

An ignition system is supplied with current by the generator or by the battery, according to circuit conditions. The ignition system comprises armature ,shaft 3', 'plugs 3 0 34, anda starting switch 35. A lighting to 3, the gen-l to one terminal of the generator and i where it will be electually protected.

low of current in the cnargingcircuit will be reversed. The coil 11, which normally assista the coil 10, now opposes the latter. Cons uently, the armature 17 is drawn upward y the spring 19 and the circuit is broken by the separation of the contact members 23' and 24. The cut-out will -not operate to` close the circuit again until the generator volta e has reached a predeter-4 minedvalue an is above that of the battery.

Various changes in the structure of my invention may be made by one skilled in the art. `For example, the'chamber 5 may be made large enough to contain the entire cutout, and a detachable cover provided for the same.

It will be understood that suchmodi'fications may be made, Without departing from the spirit of my invention, as fall within the limits of the appended claims.

I claim as my invention: .1. In combination, a casing .member, a cutout having pole pieces bent at right angles and exten ing inwardly, means for attaching said pole pieces to said casing,

said" means forming an-extension 4for said pole an interrupter 30 on the fa distributer 31, spark 32, an induction coil 33, a plug switch system is also vsupplied with current from the generator or from the batteryaccord ing to 'circuit conditions. The lighting system comprises the head lights 36', the side 35 lights 37 and the tail light 38 of an automobile. 'The lamp circuits are controlled by manually op'eiated switches 39.

It may be assumed that the generator operatively connected to the engine of lan automobile (not-shown). When the engine is started to drive the generator, current flows fromv one brush of the generator through the series coil 11, contact member 24, shunt coil 10, and shunt field winding 28 to theother brush of the generator. The armature 17 v is normally held upward by the spring 19. As the generator speed increases and a predetermined voltage* is reached, -at which the coils 10 and 11 are suiliciently energized, the armature 17 is drawn downwardl The contact members 23 and 24 then c ose a circuit for charging the battery. Current flows from oney brush of the generator through the series coil 11, contact battery 29 and other terminal of below that of the bami-y,

, a coil within said casing, mem ers extendin `through said casing at right ang lis'l ieces, an armature .for said cutout, and a etachable cover for said-armature and said extensions. y v

. 2. A cut out comprising a casing, a core. member, pole pieces bent at ri ht angles and Yesto sai said pole and a movable armature member coacting with said' extending members.

3. A cut out comprising a 'casing having a chamber, a core member and pole pieces 1nclosed and supported by said casing, extensions for said pole pieces proj ecting' through said casing, a movable armature member-coacting with .said extensions, and a removcore member and yconnected to able cover for said armature member.

larmature member coacting withl said con- .members 2 4 and 23, armature 17 spring 19, t

l such asadin-4 the'engine speed, the generator voltage falls the direction of 4. AA cut out comprising a supporting member, a core member, means for connecting said core member to said supporting member, said means comprising members bent at right angles and members extendinV through said casing, a coil surrounding core member, a contact memberupon and insul'ated from' said supporting member, an

11i necting means, and aI contact member carried by the armature member for coacting with the other contact member.

-In testimony whereof, I have hereuntol subscribed :my naine this 29th day of March l y t FRANK` CONRAD. Witnesses: l

R. E, CULLING B. B. Hnvas. 

